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Finding the Fourth Proportional to 483,374.32, 724,316.28 and 258,764.56

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Solution

The fourth proportional to 483,374.32, 724,316.28 and 258,764.56 is: 387,747.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,374.32 : 724,316.28 = 258,764.56 : x
  2. Step 2: Convert to fraction form
    483,374.32/724,316.28 = 258,764.56/x
  3. Step 3: Cross multiply
    483,374.32x = 724,316.28 × 258,764.56
  4. Step 4: Simplify right side
    483,374.32x = 187,427,383,495.04
  5. Step 5: Solve for x
    x = 187,427,383,495.04/483,374.32
  6. Step 6: Final answer
    x = 387,747.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.